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Home >> Mercedes Benz >> 1990 >> 190E Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/O Codes >> Symptom Diagnosis >> Fast Idle Out Of Specification
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Fast Idle Out Of Specification

Check idle control system components, coolant temperature sensor, throttle position sensor, TDC sensor, Electro-Hydraulic Actuator (EHA) and differential pressure regulator, intake air temperature sensor and atmospheric pressure sensor.

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